CN218546828U - Battery detection needle bed - Google Patents

Abstract

The utility model discloses a battery detection needle bed, it belongs to battery check out test set's technical field, and it includes: the device comprises a needle bed base assembly, a tray supporting plate assembly and an upper needle bed assembly; the needle bed base assembly is provided with a base square through frame and a shifting cover plate chain assembly. The tray supporting plate assembly is movably arranged above the needle bed base assembly and is provided with a supporting plate square through frame, two guide edgings, a stop baffle, a plurality of linear bearings, a transfer plate, a scanning assembly, a sensor assembly and a plurality of tray positioning pins. The upper needle bed assembly is arranged above the tray supporting plate assembly and is provided with an upper needle bed square through frame, a heat dissipation fan unit, a probe module, two pressing cylinders and a plurality of guide rods. The utility model provides a how to provide a simple structure, strong adaptability, easily standardization and the lower battery test needle bed's of manufacturing cost technical problem.

Description

Battery detection needle bed

Technical Field

The utility model relates to a battery check out test set's technical field especially relates to a measure the needle bed equipment that detects to the charge-discharge, internal resistance and the voltage isoparametric of battery.

Background

Currently, in a detection method for parameters such as charge and discharge, internal resistance, capacity, voltage and the like of a battery in a post-production treatment process of the battery, a needle bed form is frequently adopted to perform whole-disc press-fit conduction detection on the battery. In the method for detecting the batteries by using the needle bed, besides the mode of feeding the batteries to be detected by using an automatic stacker, a mode that partial batteries are not suitable for feeding by using the stacker is also provided; or the conveying line can not be butted with automatic feeding equipment, in particular to a battery product applied to the fields of pre-charging, OCV/IR testing machines, DCIR testing machines and the like. Based on this, chinese patent CN207675894U discloses a drawer type battery detection device, which includes a needle bed mechanism, where the needle bed mechanism includes an upper fixing frame, an upper detection needle group, a lower detection needle group, an upper detection plate, a middle supporting plate, a fixing base, and a plurality of guide pillars, the upper fixing frame, the upper detection plate, the middle supporting plate, and the fixing base are connected through the guide pillars, the upper detection needle group is arranged downward on the upper detection plate, the lower detection needle group is arranged upward on the fixing base, the middle supporting plate is arranged between the upper detection plate and the fixing base, the upper detection plate is provided with a lifting mechanism, and the fixing base is connected with the lifting mechanism; the middle supporting plate is provided with a battery tray, the middle supporting plate is provided with a first detection hole group corresponding to the lower detection needle group, the battery tray is provided with a second detection hole group matched with the first detection hole group, sliding grooves are formed in two sides of the middle supporting plate, and sliding blocks matched with the sliding grooves are arranged in two sides of the battery tray. The drawer type battery detection device has the advantages of simple positioning mechanism and accurate positioning.

However, the drawer-type battery detection device disclosed above has a technical problem that it is difficult to standardize. Specifically, the working principle of the drawer-type battery detection device disclosed above is as follows: firstly, pulling a handle of a battery tray to pull the battery tray out, placing a battery plastic sucking disc filled with batteries on the battery tray and pushing the battery plastic sucking disc back through accurate positioning of a positioning convex groove and a positioning groove, starting a battery detection device, simultaneously starting an electric fan set to radiate heat of a detection set, pressing down by a return stroke of an air cylinder to drive a middle supporting plate to move downwards together, and accurately reaching a detection position by an upper detection set and a lower detection set under the limiting action of an upper limiting column and a lower limiting column to detect the batteries. During detection, a worker can load a new battery blister tray with a battery, after the battery blister tray is detected, the cylinder of the lifting mechanism acts, the upper detection plate resets, the resetting mechanism enables the middle supporting plate to be compounded, the battery tray is pulled out, and the next battery blister tray is replaced. Therefore, when the drawer type battery detection device is used for detecting a battery, the positioning convex groove and the positioning concave groove are required to be matched with the battery to be detected, so that the battery can be detected; if the shape or structure of the battery to be detected is changed, the related mechanism needs to be redesigned; therefore, it is difficult to standardize the drawer type battery test device. In addition, because the square battery needle bed of the traditional conveyor line butt joint feeding is in butt joint with the conveyor line of incoming materials by using a section of roller line, the tray is jacked in a gap between the roller and the roller after the battery tray enters in place, so that the battery pole and the probe of the upper needle bed assembly are pressed and conducted to realize the test of the battery, and the mode can not be realized in the flying needle occasions requiring the translation of the tray to realize the step-by-step test and the occasions requiring the probe pressing up and down such as cylindrical batteries and the like. Because, for the occasion of the cylindrical battery and the flying probe test, a needle bed with larger structure difference and complexity is additionally adopted, the standardization, the cost control and the design period of the equipment component are all affected adversely.

SUMMERY OF THE UTILITY MODEL

Therefore, a need exists for providing a battery testing needle bed which has a simple structure, a strong adaptability, an easy standardization and a low manufacturing cost, so as to solve the technical problems that the battery testing needle bed in the prior art has a complex and various structure, is difficult to adapt to installation and debugging personnel, frequently makes mistakes in production and debugging, and the like, and provide the battery testing needle bed.

A battery testing needle bed, comprising: the needle bed comprises a needle bed base assembly, a tray supporting plate assembly and an upper needle bed assembly; the needle bed base assembly is provided with a base square through frame and a shifting cover plate chain assembly. The length and width of the base square-tube frame are adjustable, and the transfer cover plate chain components are connected above the base square-tube frame respectively. The tray supporting plate assembly is movably arranged above the needle bed base assembly and is provided with a supporting plate square through frame, two guide edgings, a stop plate, a plurality of linear bearings, a transfer plate, a scanning assembly, a sensor assembly and a plurality of tray positioning pins; the length and width of the supporting plate square through frame are adjustable, and the transfer cover plate chain assembly movably penetrates through the supporting plate square through frame; the two guide edge strips are respectively arranged on two sides of the supporting plate square through frame; the stop baffle is connected to the supporting plate square through frame between the two guide edge strips; the linear bearings are respectively arranged on the supporting plate square through frame; the scanning assembly and the sensor assembly are both arranged on the supporting plate square through frame; a plurality of tray locating pins are uniformly arranged on the movable support plate. The upper needle bed assembly is arranged above the tray supporting plate assembly and is provided with an upper needle bed square through frame, a heat dissipation fan unit, a probe module, two pressing cylinders and a plurality of guide rods. The length and width of the upper needle bed square through frame are adjustable; the heat dissipation fan set is provided with a plurality of heat dissipation fans which are distributed on the upper needle bed square through frame in an array manner; the probe modules are provided with a plurality of probes, and each probe is uniformly connected below the upper needle bed square through frame; the two pressing cylinders are respectively arranged on two sides of the upper needle bed square through frame, and each pressing cylinder is in driving connection with the supporting plate square through frame; the guide rods are uniformly arranged on the periphery of the upper needle bed square through frame, and each guide rod correspondingly penetrates through one linear bearing and then is connected to the base square through frame.

Furthermore, the cover plate chain transferring component is provided with a speed regulating and reducing motor, two U-shaped cover plate chains and a transmission shaft.

Furthermore, the speed regulation and reduction motor is arranged between the two U-shaped cover plate chains and is connected to the base square through frame; and the speed regulating and reducing motor is simultaneously in transmission connection with the two U-shaped cover plate chains through the transmission shaft.

Furthermore, the tray supporting plate assembly is also provided with a stepping motor, a plurality of linear sliding blocks and a linear guide rail.

Furthermore, the stepping motor is fixedly connected to the supporting plate square through frame, and the stepping motor is in power connection with the transfer plate through a screw rod.

Furthermore, the plurality of linear sliding blocks are respectively arranged at the bottom of the moving support plate, and each linear sliding block is movably connected with the linear guide rail.

Furthermore, the linear guide rail is fixedly connected to the supporting plate square through frame.

Furthermore, the probe module is also provided with a plurality of probe accommodating frames and a plurality of probe damping springs.

Furthermore, the plurality of probe accommodating frames are uniformly arranged on the upper needle bed square through frame, and the plurality of probes are arranged at the bottom of the probe accommodating frames.

Furthermore, a probe damping spring is correspondingly arranged between each probe and the probe accommodating frame.

To sum up, the battery detection needle bed of the utility model is respectively provided with a needle bed base component, a tray supporting plate component, an upper needle bed component and a battery tray; the needle bed base assembly can bear the tray supporting plate assembly and the upper needle bed assembly, and the shifting cover plate chain assembly arranged on the needle bed base assembly can drive and connect the battery tray which is arranged above the shifting cover plate chain assembly and is guided by an external battery conveying line; the whole support of the battery to be tested can be received from an external battery conveying line; moreover, needle bed base subassembly has the characteristic of adjustable length and width size that needle bed base subassembly was equipped with to make go up different specifications of needle bed subassembly ability adaptation battery tray, and then make the utility model relates to a battery detects needle bed has easy standardization and easy to carry out's advantage. In addition, the tray supporting plate assembly is provided with a supporting plate square through frame, two guide edge strips, a stop plate, a plurality of linear bearings, a moving and supporting plate, a scanning assembly, a sensor assembly, a plurality of tray positioning pins, a stepping motor, a plurality of linear sliding blocks and the linear guide rail; thereby make the tray layer board subassembly have simple structure and adaptation strong. Therefore, the utility model relates to a battery test needle bed has solved how to provide a simple structure, strong adaptability, easily standardization and the lower battery test needle bed's of manufacturing cost technical problem.

Drawings

Fig. 1 is a schematic structural view of a battery detection needle bed of the present invention;

FIG. 2 is a schematic view of a partial structure of a battery detection needle bed according to the present invention;

FIG. 3 is a schematic view of a partial structure of a battery detection needle bed according to the present invention;

FIG. 4 is a schematic view of a partial structure of a battery detection needle bed according to the present invention;

FIG. 5 is a schematic view of a partial structure of a battery detection needle bed according to the present invention;

fig. 6 is a schematic structural view of the battery detection needle bed for detecting the battery state of the utility model.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 5, the battery inspecting needle bed of the present invention includes: the needle bed comprises a needle bed base component 1, a tray supporting plate component 2 and an upper needle bed component 3; the needle bed base unit 1 includes a base frame 101 and a transfer cover chain unit 102. The length and width of the base square-tube frame 101 are adjustable, and the transfer cover plate chain assemblies 102 are respectively connected to the upper side of the base square-tube frame 101. The tray supporting plate assembly 2 is movably arranged above the needle bed base assembly 1, and the tray supporting plate assembly 2 is provided with a supporting plate square through frame 201, two guide edge strips 202, a stop plate 203, a plurality of linear bearings 204, a transfer plate 205, a scanning assembly 206, a sensor assembly 207 and a plurality of tray positioning pins 208; the length and width of the supporting plate square through frame 201 are adjustable, and the transfer cover plate chain assembly 102 movably penetrates through the supporting plate square through frame 201; the two guide edge strips 202 are respectively arranged on two sides of the supporting plate square through frame 201; the stop plate 203 is connected to the pallet square frame 201 between the two edge guide strips 202; the linear bearings 204 are respectively arranged on the supporting plate square through frame 201; the scanning assembly 206 and the sensor assembly 207 are both arranged on the pallet square frame 201; a plurality of the tray positioning pins 208 are uniformly disposed on the transfer plate 205. The upper needle bed assembly 3 is arranged above the tray supporting plate assembly 2, and the upper needle bed assembly 3 is provided with an upper needle bed square through frame 301, a heat dissipation fan set 302, a probe module 303, two pressing cylinders 304 and a plurality of guide rods 305. The length and width of the upper needle bed square through frame 301 are adjustable; the heat dissipation fan set 302 is provided with a plurality of heat dissipation fans 302a, and the plurality of heat dissipation fans 302a are distributed in an array manner on the upper needle bed square through frame 301; the probe modules 303 are provided with a plurality of probes 303a, and each probe 303a is uniformly connected below the upper needle bed square through frame 301; the two pressing air cylinders 304 are respectively arranged on two sides of the upper needle bed square through frame 301, and each pressing air cylinder 304 is in driving connection with the supporting plate square through frame 201; the plurality of guide rods 305 are uniformly arranged around the upper needle bed square through frame 301, and each guide rod 305 is connected to the base square through frame 101 after correspondingly penetrating through one linear bearing 204.

Specifically, please continue to refer to fig. 6; as shown in fig. 6, a battery tray 4 is movably arranged between the tray supporting plate component 2 and the upper needle bed component 3; the battery tray 4 can bear a battery to be detected and connects the tray pallet assembly 2 with an external battery transmission line. More specifically, when the battery detection needle bed of the present invention is in a work flow, the battery tray 4 filled with the battery to be detected is transferred to the tray supporting plate assembly 2 by an external battery transmission line; at this time, the tray and pallet assembly 2 is located at the initial position, and the tray positioning pins 208 disposed on the transfer plate 205 clamp and connect the battery tray 4 to the transfer plate 205; the two side action parts of the transfer cover plate chain component 102 arranged on the needle bed base component 1 are in power connection with the battery tray 4, so that the transfer cover plate chain component 102 continues to act on the battery tray 4 to trigger a sensor component 207 arranged in the middle of the supporting plate square frame 201; thus, the sensor assembly 207 issues a command to decelerate the transfer lid chain assembly 102; then, the battery tray 4 continues to operate until its edge abuts against the stopper plate 203; in addition, when the battery tray 4 just enters the tray supporting plate assembly 2, the two guiding bars 202 disposed on the two sides of the supporting plate square frame 201 guide the battery tray 4. Then, after the battery tray 4 moves to a mechanical limit, the sensor assembly 207 arranged at the end of the pallet square frame 201 establishes a bin and confirms that the battery tray 4 is in place, and the scanning assembly 206 reads the bar code information above the battery tray 4; then, the two pressing cylinders 304 simultaneously move the supporting plate square through frame 201 together with the battery tray 4 upwards under the limit guidance of the guide rods 305, and the linear bearings 204 facilitate the guidance of the guide rods 305 to make the upwards movement of the supporting plate square through frame 201 smooth; and the supporting plate square through frame 201 ascends until the pole of each battery to be tested is correspondingly conducted with one probe 303a; then, the detection of the preset parameters of the battery is completed. After the detection is finished, the pressing air cylinder 304 drives the supporting plate square through frame 201 again to reset; then, the battery tray 4 is driven by the transfer cover chain assembly 102 to be discharged to a battery conveyor line returning to the outside, and thus, a battery inspection process is completed. More specifically, base square tube frame 101 the layer board square tube frame 201 and the length and width size of upper needle bed square tube frame 301 all can freely be adjusted, so that the different specification of tray layer board subassembly 2 ability adaptation battery tray 4, thereby make the utility model relates to a battery detects the advantage that the needle bed has the commonality.

Further, the transfer cover plate chain assembly 102 has a speed-regulating speed-reducing motor 102a, two U-shaped cover plate chains 102b and a transmission shaft 102c; the speed-regulating and speed-reducing motor 102a is arranged between the two U-shaped cover plate chains 102b and is connected to the base square through frame 101; and the speed-regulating and speed-reducing motor 102a is simultaneously in transmission connection with the two U-shaped cover plate chains 102b through the transmission shaft 102 c. Specifically, the speed-regulating and speed-reducing motor 102a and the two U-shaped cover plate chains 102b are respectively connected to the base square through frame 101, and the speed-regulating and speed-reducing motor 102a is simultaneously and dynamically connected to the two U-shaped cover plate chains 102b through a transmission shaft 102, so that when the battery tray 4 is placed on the pallet square through frame 201, the two U-shaped cover plate chains 102b are respectively located at two sides of the battery tray 4 and are in power connection with the battery tray 4; therefore, the speed-regulating and speed-reducing motor 102a can drive the battery tray to perform corresponding actions in the tray supporting plate assembly 2.

Further, the tray and pallet assembly 2 further has a stepping motor 209, a plurality of linear sliders 210, and a linear guide 211. The stepping motor 209 is fixedly connected to the supporting plate square through frame 201, and the stepping motor 209 is in power connection with the transfer plate 205 through a screw rod; the plurality of linear sliding blocks 210 are respectively arranged at the bottom of the transfer plate 205, and each linear sliding block 210 is movably connected with the linear guide rail 211; the linear guide rail 211 is fixedly connected to the supporting plate square through frame 201. In particular, in another embodiment of the battery detection needle bed of the present invention; distributed flying probe detection is required to be carried out on the square battery; the specific working process comprises the following steps: an external conveying line transfers the battery tray 4 filled with batteries into the tray pallet assembly 2, and the battery tray 4 is driven by the transfer cover plate chain assembly 102 to move in place; then, the scanning component 206 reads information such as a bar code of the battery tray 4; thereafter, the pressing cylinder 304 drives the tray supporting plate assembly 2 to ascend, and the first group of batteries to be tested are detected after the probes 303a are conducted. Then, the pressing cylinder 304 drives the tray and pallet assembly 2 to descend to a preset middle position height, and then the stepping motor 209 drives the transfer plate 205 to translate for a battery distance along the guidance of the linear slider 210 and the linear guide rail 211 through a lead screw; then, the tray and pallet assembly 2 moves upward to a preset battery detection station under the driving of the pressing cylinder 304. Specifically, the processes of completing primary battery detection, descending to the middle position, performing translation adjustment, and ascending to the battery detection station may be repeated for multiple times until all detection requirements of the entire tray of batteries are completed, and then the battery tray 4 is released onto an external conveyor line.

Further, for the detection situation of the cylindrical battery that needs to be detected both at the top and the bottom, in other embodiments, a lower probe (not shown) may be installed on the pallet square frame 201; the lower probe has the same structure as the probe 303a, but is disposed on the pallet square frame 201. Therefore, the upper side and the lower side of the partial cylindrical battery can be simultaneously detected.

Further, the probe module 303 further has a plurality of probe accommodating frames 303b and a plurality of probe damping springs 303c; the plurality of probe accommodating frames 303b are uniformly arranged on the upper needle bed square through frame 301, the plurality of probes 303a are arranged at the bottom of the probe accommodating frame 303b, and the probe damping spring 303c is correspondingly arranged between each probe 303a and the probe accommodating frame 303 b. Specifically, a plurality of the probe accommodating frames 303b are uniformly arranged below the upper needle bed square through frame 301, and a plurality of the probes 303a are arranged at the bottom of each probe accommodating frame 303 b; then, each probe 303a is connected with a probe damping spring 303c between the probe accommodating frames 303 b; therefore, when the probe 303a is close to the battery product to be detected, the probe 303a is prevented from being damaged due to impact force.

Specifically, the utility model relates to a battery detects beneficial effect of needle bed does: because the existing battery detection needle bed which is in butt joint with a conveying line and automatically feeds has the disadvantages of complex structure and poor adaptability, the difference between the needle bed structures designed according to different battery specifications or different detection modes is large. Therefore, it is difficult for the installation and debugging personnel to quickly know the installation and debugging of the needle bed of the new project by taking advantage of the capability of one-to-three or touch bypass, thereby causing various production problems caused by improper installation and debugging. The utility model relates to a battery detects adaptable multiple battery tray structure of needle bed structure or can use at new project through simple adjustment, standardized inventory can be realized to most of spare parts, makes new project design efficiency improve 20 ~ 50%, and the cost of manufacture has reduced 5 ~ 20%, and the installation and debugging problem has reduced 2 ~ 10%.

To sum up, the battery detection needle bed of the utility model is respectively provided with a needle bed base component 1, a tray supporting plate component 2, an upper needle bed component 3 and a battery tray 4; the needle bed base assembly 1 can bear the tray pallet assembly 2 and the upper needle bed assembly 3, and the shifting cover plate chain assembly 102 arranged on the needle bed base assembly 1 can drive and connect the battery tray 4 which is arranged above the shifting cover plate chain assembly and is led in by an external battery conveying line; the whole battery to be tested can be received from an external battery conveying line; moreover, needle bed base subassembly 1 is equipped with needle bed base subassembly 1 has the characteristic of adjustable length and width size, thereby makes go up needle bed subassembly 3 can the different specifications of adaptation battery tray 4, and then make the utility model relates to a battery detects needle bed has easily standardized and easy to carry out's advantage. In addition, the tray and pallet assembly 2 is provided with a pallet square through frame 201, two guide bars 202, a stop plate 203, a plurality of linear bearings 204, a transfer plate 205, a scanning assembly 206, a sensor assembly 207, a plurality of tray positioning pins 208, a stepping motor 209, a plurality of linear sliders 210 and the linear guide rail 211; thereby making the pallet assembly 2 simple in construction and adaptable. Therefore, the utility model relates to a battery test needle bed has solved how to provide a simple structure, strong adaptability, easily standardization and the lower battery test needle bed's of manufacturing cost technical problem.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A battery test needle bed, comprising: the needle bed comprises a needle bed base assembly (1), a tray supporting plate assembly (2) and an upper needle bed assembly (3); the needle bed base assembly (1) is provided with a base square through frame (101) and a transfer cover plate chain assembly (102);

the length and width of the base square through frame (101) are adjustable, and the transfer cover plate chain assemblies (102) are respectively connected above the base square through frame (101); the tray supporting plate assembly (2) is movably arranged above the needle bed base assembly (1), and the tray supporting plate assembly (2) is provided with a supporting plate square through frame (201), two guide edge strips (202), a stop baffle (203), a plurality of linear bearings (204), a transfer plate (205), a scanning assembly (206), a sensor assembly (207) and a plurality of tray positioning pins (208); the length and width of the supporting plate square through frame (201) are adjustable, and the transfer cover plate chain assembly (102) movably penetrates through the supporting plate square through frame (201); the two guide edge strips (202) are respectively arranged on two sides of the supporting plate square through frame (201); the stop baffle plate (203) is connected to the supporting plate square through frame (201) between the two guide edge strips (202); the linear bearings (204) are respectively arranged on the supporting plate square through frame (201); the scanning assembly (206) and the sensor assembly (207) are both arranged on the supporting plate square through frame (201); a plurality of tray positioning pins (208) are uniformly arranged on the transfer plate (205);

the upper needle bed assembly (3) is arranged above the tray supporting plate assembly (2), and the upper needle bed assembly (3) is provided with an upper needle bed square through frame (301), a heat dissipation fan set (302), a probe module (303), two pressing air cylinders (304) and a plurality of guide rods (305); the length and width of the upper needle bed square through frame (301) are adjustable; the heat dissipation fan set (302) is provided with a plurality of heat dissipation fans (302 a), and the heat dissipation fans (302 a) are distributed in an array manner on the upper needle bed square through frame (301); the probe modules (303) are respectively provided with a plurality of probes (303 a), and each probe (303 a) is uniformly connected below the upper needle bed square through frame (301); the two pressing air cylinders (304) are respectively arranged on two sides of the upper needle bed square tube frame (301), and each pressing air cylinder (304) is connected with the supporting plate square tube frame (201) in a driving mode; the guide rods (305) are uniformly arranged on the periphery of the upper needle bed square through frame (301), and each guide rod (305) correspondingly penetrates through one linear bearing (204) and then is connected to the base square through frame (101).

2. A battery testing needle bed according to claim 1, characterized in that: the shifting cover plate chain assembly (102) is provided with a speed-regulating speed-reducing motor (102 a), two U-shaped cover plate chains (102 b) and a transmission shaft (102 c).

3. A battery testing needle bed according to claim 2, characterized in that: the speed-regulating and speed-reducing motor (102 a) is arranged between the two U-shaped cover plate chains (102 b) and is connected to the base square through frame (101); and the speed regulation and reduction motor (102 a) is simultaneously in transmission connection with the two U-shaped cover plate chains (102 b) through the transmission shaft (102 c).

4. A battery testing needle bed according to claim 3, characterized in that: the tray supporting plate assembly (2) is further provided with a stepping motor (209), a plurality of linear sliding blocks (210) and linear guide rails (211).

5. A battery testing needle bed according to claim 4, characterized in that: the stepping motor (209) is fixedly connected onto the supporting plate square through frame (201), and the stepping motor (209) is in power connection with the moving plate (205) through a screw rod.

6. A battery detection needle bed according to claim 5, characterized in that: the linear sliding blocks (210) are respectively arranged at the bottom of the moving carrier plate (205), and each linear sliding block (210) is movably connected with the linear guide rail (211).

7. A battery testing needle bed according to claim 6, characterized in that: the linear guide rail (211) is fixedly connected onto the supporting plate square through frame (201).

8. A battery testing needle bed according to claim 7, characterized in that: the probe module (303) also has a plurality of probe accommodating frames (303 b) and a plurality of probe damping springs (303 c).

9. A battery testing needle bed according to claim 8, wherein: the plurality of probe accommodating frames (303 b) are uniformly arranged on the upper needle bed square through frame (301), and the plurality of probes (303 a) are arranged at the bottom of the probe accommodating frames (303 b).

10. A battery testing needle bed according to claim 9, characterized in that: and a probe damping spring (303 c) is correspondingly arranged between each probe (303 a) and the probe accommodating frame (303 b).

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